CN104052097A - Battery Module And A Method For Monitoring A Battery Module - Google Patents
Battery Module And A Method For Monitoring A Battery Module Download PDFInfo
- Publication number
- CN104052097A CN104052097A CN201410093006.8A CN201410093006A CN104052097A CN 104052097 A CN104052097 A CN 104052097A CN 201410093006 A CN201410093006 A CN 201410093006A CN 104052097 A CN104052097 A CN 104052097A
- Authority
- CN
- China
- Prior art keywords
- battery module
- storage battery
- voltage
- battery
- power semiconductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery module. The battery module has a battery cell circuit with multiple battery cells, and a monitoring and controlling unit monitoring a functional state of the battery module. A coupling unit is arranged in the battery module. Two half bridges are arranged in the coupling unit. Each of the half bridges comprises a first power semiconductor, a second power semiconductor and a middle connecting end, wherein the first and the second semiconductors are respectively coupled to the positive pole and the negative pole of the battery cell. The half bridges are connected with other output ends of the battery module via the corresponding middle connecting ends. The battery module operates the power semiconductors of half bridges in a normal operation so that a battery module voltage at output terminals selectively lies in a positive or negative orientation.
Description
Technical field
The present invention relates to a kind of battery module, it has with the storage battery list pond circuit in a plurality of storage battery lists pond with for monitoring monitoring and the control unit of the functional status of described battery module.The invention still further relates to a kind of for the monitoring by means of arranging at battery module with control the method for single cell monitoring battery module.The invention still further relates to a kind of battery system, it comprises storage battery and battery management system, and described storage battery has at least one batteries, is provided with a plurality of battery modules in described batteries.
Background technology
Conventionally, the storage battery being applied in hybrid power and motor vehicle is called to traction battery, because these storage batterys are for the power supply of electrically driven.In order to realize power and the energy number needing in hybrid power and motor vehicle, each storage battery list pond series connection and part are additionally connected in parallel.In motor vehicle, be often connected in series 10 or more single ponds and these storage batterys have until the voltage of 450V.And in motor vehicle driven by mixed power, conventionally surpassing the voltage threshold of 60V, this voltage is classified to acritical in the contact by people.Figure 1 illustrates the basic circuit diagram of the battery system with such traction battery 20.Storage battery 20 comprises a plurality of storage battery lists pond 21.For the diagram being reduced in Fig. 1 is only provided with Reference numeral 21 in two storage battery list ponds.The common Modularly of traction battery in hybrid power and motor vehicle forms.Storage battery list pond 21 at this by least two single connections in series or in parallel with each other forms battery module (not shown in Fig. 1).
Storage battery 20 consists of two storage battery list pond circuit 22,23, and they comprise respectively a plurality of storage battery list ponds 21 that are connected in series.These storage battery list pond circuit 22,23 or single pond module respectively with accumulator terminal 24,25 with charging with the link of plug 30, be connected.
Positive accumulator terminal 24 can be connected with storage battery 20 with charging device 40 via separated, and this separation and charging device comprise separating switch 41, and it is connected in parallel with the series circuit being comprised of charge switch 42 and charging resistor 43.Negative accumulator terminal 25 is attachable via separator 50 with storage battery 20, and this separator comprises another separating switch 51.
In addition Fig. 2 shows Figure 60, and different fault mechanism 61 and the consequence 62 thereof of lithium-ions battery is wherein very schematically shown.Fault mechanism 61 shown in this can cause storage battery list pond by 63 thermal breakdowns that cause 64 that raise of unallowed temperature.Can the discharge based on gas 65 in the situation that there is thermal breakdown 64---in the situation that this discharge can for example opening the safety-valve, as the result of pressing in the storage battery list pond of improving, occur---causing the fire 66 in storage battery list pond or under extreme case, arrange cause storage battery list pond 21 break 67.Therefore must be in storage battery list pond 21 in the situation that the application in traction battery approaches with maximum the appearance that 1 probability is got rid of thermal breakdown 64.
Thermal breakdown 64 can be when the overcharging of storage battery list pond as the result of the deep discharge in the storage battery list pond during back to back charging process or---they can for example produce for external short circuit 90---occurs in the situation that there is unallowed high charge and the discharging current in storage battery list pond.In addition thermal breakdown 64 can occur in the situation that there is storage battery list pond internal short-circuit 100, this short circuit can be for example produces as the result of the great mechanical force during accident 101 or as the result of inner tree-shaped brilliant 102 the formation in storage battery list pond, and this tree-shaped crystalline substance can for example exist at low temperatures in the situation of high charge current and produce.In addition thermal breakdown 64 also can occur as the result of storage battery list pond internal short-circuit, and this internal short-circuit can be polluted, especially by the metallic foreign body particle 103 existing in storage battery list pond, be caused by the storage battery list pond producing during fabrication.And can be in the situation that there is the unallowed heating in storage battery list pond in thermal breakdown 64---it for example can produce as the result of vehicle fire---or in the situation that exist the overload in storage battery list pond 120 to occur.
Figure 3 illustrates the basic circuit diagram by the known battery system 10 of prior art, this battery system comprises traction battery 20 and the battery management system (BMS) with a plurality of storage battery lists pond 21.The electronic installation of battery management system 11 has Distributing Frame, the monitoring and the control unit 130 that wherein the single cell monitoring electronic installation (CSC electronic installation) by storage battery list pond 21 are formed are designed to satellite, and they are set respectively for monitoring the functional status in one or more storage battery lists pond 21 and communicating by letter with central accumulator control device (BCU) 140 via internal bus system 141.
The monitoring electronic installation in the electronic installation of battery management system, especially storage battery list pond 21 needs, to protect the storage battery list pond 21 of critical state shown in figure 2, this can cause thermal breakdown.In the electronic installation of battery management system, move high flow rate; to protect storage battery list pond 21 to avoid because external cause is for example due to the overload of the short circuit in the inverter of electronic driver on the one hand, avoid on the other hand due to the fault of the electronic installation of battery management system, for example, because storage battery unit voltage is by the wrong detection harm storage battery list pond 21 of monitoring and control unit 130.
In battery system shown in Figure 1, in battery system shown in Figure 3, traction battery is attachable with positive accumulator terminal 24 and is attachable via separator 50 with negative accumulator terminal 25 via separated and charging device 40.In this case represent that same or analogous member is for using respectively identical Reference numeral at the battery system shown in Fig. 1 and 3.
In addition central accumulator control device 140 is designed to control separating switch (relay) 41 and the charge switch (relay) 42 of separated and charging device 40.Separating switch 41 and charge switch 42 represent with arrow 142 in the drawings by means of the control of accumulator control device 140.And central accumulator control device 140 is designed to control another separating switch (relay) 51 of separator 50.Control by means of accumulator control device 140 separating switch 51 represents with arrow 143.
The accumulator control device 140 of central authorities is connected via other accumulator terminal 24,25 of high volt wire 144,145 and each.In addition the accumulator control device 140 of central authorities comprises current sensor 150,160, and they are arranged for measures the electric current that flows through traction battery 20.Accumulator control device 140 is also communicated by letter with vehicle interface via CAN bus 146.Via CAN bus, can provide the information about the functional status of vehicle by accumulators control device 140.
In the battery management system 11 of application known battery system by prior art, therefore make every effort to so improve the safety of battery system 10, make not occur irrational danger.Functional safety at this according to 26262 pairs of battery management systems 11 of standard ISO has proposed high request, because the fault of the electronic installation of as above having illustrated can cause danger.In addition for lithium-ions battery list pond, stipulated safety test.In order to allow to transport storage battery list pond, must as transporting, test UN by embodiment.Measurement result must be assessed according to EUCAR harmful grade or danger classes.Predetermined minimum safe grade must be followed at this in storage battery list pond.In order to reach this point, in the storage battery list pond of setting for traction battery, take multiple addition thereto.
If can not significantly improve the safety in storage battery list pond 21, so for predictably setting up according to the classification of danger classes ASIL C for having for the battery management system of the battery system of the traction battery 20 of electric motor car and plug-in hybrid power (Plug-in hybrid power).Such addition thereto is taked thus, is about to so-called safety device and is integrated in storage battery list pond.Therefore in storage battery list pond, be typically integrated with the safety device of explanation hereinafter.
The integrated safety device (OSD) that overcharges in storage battery list pond.The safety device that overcharges like this makes storage battery list pond in overcharging process, be no more than EUCAR danger classes 4.The allowed band of storage battery unit voltage finishes at 4.2V place.In overcharging process, storage battery list pond forms so high interior pressure since the storage battery unit voltage of an about 5V, and it is outwardly-bent overcharges the diaphragm of safety device and by this storage battery list pond electricity ground short circuit.As its result so by storage battery list tank discharge, until activate the safety device in storage battery list pond.The short circuit in the storage battery list pond between two utmost points in storage battery list pond maintains by overcharging safety device.
In addition storage battery list pond safety device is integrated in storage battery list pond.Should in storage battery list pond, integrated Fuse Type safety device be very effective protection instrument in the aspect of storage battery list pond, but in the series circuit of storage battery list pond at battery module or while installing, caused great problem in battery system.These measures are disadvantageous on the contrary there.
In storage battery list pond also integrated puncture safety device (NDS).This puncture safety device protection storage battery list pond; its method is to produce the short circuit paths so limiting in nail or sharp article are penetrated into storage battery list pond time; the extreme local pyrexia in storage battery list pond in its region that can not cause entering at stator, this heating can cause the local melting of the separator of existence.
In storage battery list pond, be also integrated with functional safety layer (SFL).The ceramic coating of one of this functional safety layer two electrode by storage battery list pond, preferably by the ceramic coating of anode, realize.By means of functional safety layer, can when separator melts, stop the plane short circuit in storage battery list pond and then stop the electric energy in storage battery list pond to be converted into extremely rapidly loss heat.
In storage battery list pond, be also integrated with in addition collision safety device.Collision safety device has and the similar functional mode of puncture safety device.In the situation that the extreme mechanical deformation of storage battery list pond housing provides the short circuit paths limiting in storage battery list pond, this short circuit paths stop storage battery list pond extreme local heating and improve thus the safety in storage battery list pond.
In current storage battery list pond in research and development, the measure for electrical safety relates to great cost in particular, and these measures are for example protected and avoided overcharging or guarantee to filter and protect.These measures moreover in storage battery list pond is installed to battery module or battery system after be disadvantageous rather than significant even on the contrary.For example can when the activation of the Fuse Type safety device in storage battery list pond, produce such situation, the electronic installation of the battery management system (BMS) existing stands very high negative voltage.In battery system aspect, produce thus additional cost, because must meet the transport regulations for storage battery list pond layer, and can not relate to thus other utilization.
Summary of the invention
According to the present invention, propose a kind of battery module, there is the storage battery list pond circuit that formed by a plurality of storage battery lists pond and for monitoring monitoring and the control unit of the functional status of described battery module.At this, in described battery module, be provided with the coupling unit with two half-bridges, described half-bridge comprise respectively with the first power semiconductor of the positive pole coupling of described storage battery list pond circuit, with the second power semiconductor and the middle link of the negative pole coupling of described storage battery list pond circuit.Described half-bridge is connected with another lead-out terminal of difference of described battery module via link in the middle of corresponding.In addition described battery module is provided under normal operation by means of the described coupling unit of the operation like this of the control by monitoring and control unit, make to connect first power semiconductor of one of described two half-bridges and the second power semiconductor of described another half-bridge and turn-off other power semiconductors of described half-bridge, thereby battery module voltage is selectively applied on the lead-out terminal of described battery module along positive direction or negative direction.
According to the present invention, also provide a kind of for monitoring the method for battery module, wherein by means of the monitoring arranging with control single cell monitoring battery module in battery module.At this, by means of coupling unit, move described battery module, coupling unit comprises the half-bridge that forms full-bridge being comprised of power semiconductor.If determine failure condition or the dangerous situation different from the normal operation of battery module by described monitoring and control unit, by means of described coupling unit and/or with the control of the discharge circuit of described storage battery list pond repid discharge that be coupled and that be designed for described battery module, make described battery module under a kind of safe condition so.
According to the present invention, also provide a kind of battery system, it comprises storage battery and battery management system, described storage battery has at least one batteries, in described batteries, arrange a plurality ofly according to battery module of the present invention, wherein said battery management system is constructed to communicate by letter with control unit with the monitoring of described battery module.
Hereinafter showing the present invention preferably improves.
Clearly say according to the invention provides a kind of battery module, it comprise integrated monitoring and control unit and provide can change poles output voltage.Especially be based on the coupling unit with four power semiconductors arranging in battery module and realized, the autotelic control by power semiconductor provides a series of adjustable safety functions for the protection of battery module.Safety function can be based on purpose applying by the monitoring of monitoring and control unit battery module.At the normal output voltage providing on can be about the lead-out terminal at battery module in service by battery module change poles, thereby can be along positive direction or negative direction output battery module voltage according to battery module of the present invention.
Based on according to the function of battery module of the present invention, be change poles battery module voltage, according to battery module of the present invention, be especially useful in the three-phase battery system with adjustable output voltage step by step, these three-phase battery systems are called to storage battery direct-flow inverter, or are generally applicable in thering is the heterogeneous battery system of adjustable output voltage step by step.
Preferably, according to monitoring of the present invention and control unit, be also configured to, in order to regulate the normal operation of battery module, wherein on the lead-out terminal of battery module, there is not voltage, so control the power semiconductor of coupling unit, make to connect half-bridge or the first or second power semiconductor.In other words, according to battery module of the present invention, also can selectively export 0V voltage to its lead-out terminal.Preferably, at this, turn-off other two power semiconductors, for example that is to say and turn-off two the second power semiconductors in the situation that connecting the first power semiconductor, and in contrast.
In a preferred implementing form of the present invention, according to monitoring of the present invention and control unit, be designed to, when existing its value to surpass the storage battery unit voltage of upper voltage threshold or battery module voltage, and/or when having its value lower than the storage battery unit voltage of lower voltage threshold or battery module voltage, so control the power semiconductor of coupling unit, to regulate the functional status of battery module, under described functional status, do not have electric current can flow through described battery module, the second or first power semiconductor that makes to connect the first or second power semiconductor of half-bridge and turn-off half-bridge.
This advantage having is; what monitoring and control unit were identified in the battery module of working under normal operation according to the upper threshold value that surpasses storage battery unit voltage or battery module voltage has overcharging of threat, and subsequently can be advantageously no longer accumulators module charge and for example in the situation that of battery charging plant fault, protect safely thus storage battery list pond to avoid overcharging.
In addition monitoring and control unit are identified the deep discharge that has threat of the battery module based on working under normal operation according to the lower threshold value lower than storage battery unit voltage or battery module voltage, wherein change battery module into safe condition, under this state, no longer include electric current and flow through battery module.May according to battery module of the present invention, flow through power semiconductor or the semiconductor switch only existing by whole comprising according to the outside exportable electric current of the battery system of battery module of the present invention.
In another preferred implementing form of the present invention, according to monitoring of the present invention and control unit, set and be used for, when existing its value to surpass the charging current of charging current threshold value predetermined or that compatibly select, and/or when existing its value to surpass the discharging current of discharging current threshold predetermined or that compatibly select, the described power semiconductor of so controlling described coupling unit is to regulate the functional status of described battery module, under described functional status, no longer include electric current and can flow through described battery module, the second or first power semiconductor that makes to connect the first or second power semiconductor of described half-bridge and turn-off described half-bridge.
Therefore monitoring and the battery module of control unit based in normal work in service recognize the overload that has threat due to too high discharging current, and these too high discharging currents for example can be as the result appearance of the external short circuit of the trouble accumulator due in inverter.At this, change battery module into safe condition, under this state, do not have electric current to flow through battery module.Therefore protect battery module to avoid having the load that does not allow high discharging current.
In addition monitoring and the battery module of control unit based in normal work in service recognize the overload that has threat due to too high charging current, wherein change battery module into safe condition subsequently, under this state, no longer include electric current and flow through battery module.Therefore protect battery module to avoid having the load that does not allow high charging current.This is for example especially favourable in the situation that there is low-down temperature, and wherein each storage battery list pond is especially responsive about constructible lithium coating on anode.
In an especially favourable form of implementation of the present invention, according to monitoring of the present invention and control unit, be configured to, existence according to the analysis hazard recognition situation of the information of especially communicating by letter by battery management system can damage battery module under this dangerous situation.In addition, according to monitoring of the present invention and control unit, can be configured to, when dangerous situation, so control in two half-bridges of coupling unit one of at least, make the second or first power semiconductor of connecting the first or second power semiconductor of a half-bridge and making identical half-bridge in service as controllable resistance work in so-called activation, thereby battery module is discharged.The first and/or second power semiconductor of another half-bridge can be turn-offed for this reason.In addition can connect respectively for the electric discharge of battery module two first or the second power semiconductor of each half-bridge, in contrast correspondingly the second of two half-bridges or first power semiconductor is activating work in service.
In other words, can be in one case---wherein according to the electronic installation of the monitoring of the battery module of essential safety of the present invention and control unit, by battery management system, be for example apprised of the corresponding information about this, about the information according to the automobile of battery system of the present invention with accident is wherein installed---via one of two half-bridges or via two half-bridges, battery module is discharged in parallel.At battery module, via one of two half-bridges interdischarge interval battery module, do not pass through its lead-out terminal output voltage, however nonetheless electric discharge lentamente.Especially as the power semiconductor of controlled resistance operation, at this, comprise its hot link and coolingly design as requested.
In another especially favourable form of implementation of the present invention, monitoring and control unit are provided for, according to the analysis of single pond temperature of measuring or battery module temperature, especially when the single pond temperature over predetermined temperature threshold or the battery module temperature and/or according to the analysis of storage battery unit voltage or battery module voltage, the especially existence of hazard recognition situation when the voltage collapse of storage battery unit voltage or battery module voltage.
In another especially preferred form of implementation of the present invention, battery module is provided with the discharge circuit being coupled with described storage battery list pond, the discharge circuit especially with the series circuit being comprised of power semiconductor and resistance in addition.At this, battery module can be provided for, when dangerous situation, so control described discharge circuit, make it possible to realize battery module by means of the electric discharge of discharge circuit, especially battery module with an electric discharge of flowing through the discharging current of discharge circuit, described discharging current equals a predetermined part for the short circuit current of described battery module.Its advantage is, can be based on the attainable discharging current of thermal losses Power Limitation at this, and this thermal losses power produces in the power semiconductor as controllable resistance operation or power semiconductor can be forced in continuous service.
Therefore, if informed according to the electronic installation of the monitoring of the battery module of essential safety of the present invention and control unit and be provided with according to the vehicle of battery system of the present invention and have accident by battery management system, can pass through discharge circuit so,---it is hereinafter also referred to as supper-fast discharge circuit (UFDD)---is as quickly as possible by storage battery list tank discharge.In order to support discharging current, also can discharge by one or two half-bridge in storage battery list pond.
Can be based on advantageously especially also identifying reliably the enforcement that test process---tests battery module---during this test process according to the identification of dangerous situation of the present invention or other are for the similar situation of battery module according to an aspect.
If for example stand puncture test or crash tests according to battery module of the present invention in the scope of UN transportation test, analysis according to the electronic installation of monitoring of the present invention and control unit by storage battery unit voltage or battery module voltage recognizes by electric current storage battery list tank discharge, and can not move this battery module.The identification of this process can for example realize by the voltage collapse of storage battery unit voltage or battery module voltage.As its result, trigger at once via the electric discharge to this battery module according to discharge circuit of the present invention, and substantially via discharge circuit, this battery module is discharged subsequently.Selectively also can as illustrated, by two half-bridges, realize at this support of the electric discharge of battery module.
If stand strong heating according to battery module of the present invention, so can be by the electronic installation identification this point according to monitoring of the present invention and control unit.As its result, for example trigger at once via the electric discharge to this battery module according to discharge circuit of the present invention, and in time battery module is discharged via discharge circuit.
Generally speaking, according to the battery module of the essential safety of electricity of the present invention, can be combined in the coupling unit that arranges in battery module and monitoring and control unit and design so safely, make than proposing less requirement by the known battery system of prior art to battery management system according to battery management system of the present invention.Yet in addition can consider the obvious measure of non-object of multiple current enforcement, for example accumulators list pond or battery module are provided with integrated safety device and/or the integrated storage battery list pond safety device of overcharging.
In addition can consider or realize at least very simply conventional measure, it for improving fail safe in the situation that there is strong mechanical force, as accumulators module is provided with integrated puncture safety device and/or is provided with integrated collision safety device, because less according to the requirement of battery module side of the present invention.At this, realize strong mechanical force and---as it is for example emulation during UN transportation is tested---can act on non-dangerously storage battery list pond.This especially also relate to by means of puncture test with the object of spine to the puncture of battery module and/or by means of collision about the battery module of all three spatial axes or the strong deformation in each storage battery list pond.According to battery module of the present invention, can automatically protect and self avoid unallowed running status by means of monitoring and control unit, at this, for example should not be assigned in the safety function of electronic installation of battery management system.
By according to the battery module of electric essential safety of the present invention therefore a kind of basic combination be available, by this basic combination, can form the especially battery system of the safety in electronic and motor vehicle driven by mixed power, its fail safe is especially higher than the fail safe in the battery system known by prior art.
Accompanying drawing explanation
Below with reference to appended accompanying drawing, describe embodiments of the invention in detail.Wherein:
Fig. 1 shows by the known basic circuit diagram with traction battery of prior art;
Fig. 2 shows a schematic diagram, and it shows one by the fault mechanism of the known lithium-ions battery of prior art, and this fault mechanism can cause the thermal breakdown of this lithium-ions battery;
Fig. 3 shows the basic circuit diagram by the known battery system of prior art, and this battery system comprises traction battery and the battery management system consisting of a plurality of storage battery lists pond;
Fig. 4 shows according to the basic circuit diagram of the battery module of the first form of implementation of the present invention;
Fig. 5 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Fig. 6 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Fig. 7 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Fig. 8 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Fig. 9 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Figure 10 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention;
Figure 11 shows according to the basic circuit diagram of the battery module of another form of implementation of the present invention, and it comprises the supper-fast electric discharge device for the repid discharge of battery module; And
Figure 12 shows the basic circuit diagram of the storage battery direct-flow inverter with three batteries, wherein a plurality ofly respectively according to battery module of the present invention, is connected in series.
Embodiment
Figure 4 illustrates according to the basic circuit diagram of the battery module 221 of the first form of implementation of the present invention.According to the battery module 221 of the first form of implementation of the present invention, comprise a plurality of storage battery list ponds 21 that arrange in storage battery list pond circuit 226.Storage battery list pond circuit 226 is series circuit in this case, but in other forms of implementation of the present invention, can have parallel circuits or have parallel circuits and the combination of series resistance.Storage battery Dan Chi is connected with single cell monitoring electronic installation (CSC) 228, and it is provided for monitoring each storage battery list pond 21.According to realizing single cell monitoring electronic installation 228 in the form of implementation shown in this by central single cell monitoring electronic installation, it is connected with all storage battery lists pond 21 and especially can controls in addition single pond balance.
Battery module 221 has coupling unit in addition, and it is by the second half-bridge (the left half-bridge in Fig. 4) formation that has first half-bridge (the right half-bridge in Fig. 4) of the first and second power semiconductors 241,242 and have the first and second power semiconductors 251,252.A full-bridge with four power semiconductors 241,242,251,252 of two half-bridge 240,250 common formation.Be parallel to power semiconductor 241,242,251,252 and connect respectively a diode 260, its conducting direction is in contrast to the conducting direction trend of corresponding power semiconductor.For each half-bridge 240,250 of simplicity of illustration only a diode be provided with Reference numeral 160.
The first half-bridge 240 is at a upper power semiconductor switch that is attached to the right half-bridge of first power semiconductor 241(Fig. 4) the first link on be connected with the positive pole 222 of storage battery list pond or storage battery list pond circuit 226 and at a lower power semiconductor switch that is attached to the right half-bridge of second power semiconductor 242(Fig. 4) the second link on be connected with the negative pole 223 of storage battery list pond circuit 226.On first half-bridge 240 these external middle links, be connected with the first lead-out terminal 224 of battery module 221.
The second half-bridge 250 is at a upper power semiconductor switch that is attached to the left half-bridge of first power semiconductor 251(Fig. 4) the first link on be connected with the positive pole 222 of storage battery list pond circuit 226 and at a lower power semiconductor switch that is attached to the left half-bridge of second power semiconductor 252(Fig. 4) the second link on be connected with the negative pole 223 of storage battery list pond circuit 2126.On second half-bridge 250 these external middle links, be connected with the second lead-out terminal 225 of battery module 221.
According to battery module 221 of the present invention, comprise that in addition a monitoring being connected in parallel with storage battery list pond circuit 226 and control unit 230 are for the functional status of monitoring battery module 221.Monitoring and control unit 230 have the integrated control for four power semiconductors 241,242,251,252 according to setting of the present invention.
Power semiconductor 241,242,251,252 can be by means of so controlling according to monitoring of the present invention and control unit 230, if made, under normal operation, battery module 221 should be along positive direction (+U
batteriemodul) export battery module voltage to lead-out terminal 224,225, connect the first power semiconductor 241 of the first half-bridge 240 and the second power semiconductor 252 of the second half-bridge 250 and turn-off other two power semiconductors 242,251.
Power semiconductor 241,242,251,252 can be by means of so controlling according to monitoring of the present invention and control unit 230, if made, under normal operation, battery module 221 should be along negative direction (U
batteriemodul) export battery module voltage to lead-out terminal 224,225, connect the second power semiconductor 242 of the first half-bridge 240 and the first power semiconductor 251 of the second half-bridge 250 and turn-off other two power semiconductors 241,252.
Power semiconductor 241,242,251,252 in addition can be by means of so controlling according to monitoring of the present invention and control unit 230, it is also adjustable making the functional status at the selectively battery module 221 normal in service of battery module 221, and under this functional status, battery module 221 does not send output voltage.Under this state, or connect the first power semiconductor 241,251 of two half-bridges 240,250 and turn-off other two power semiconductors 242,252, or connect the first power semiconductor 242,252 of two half-bridges 240,250 and turn-off other two power semiconductors 241,252.
In Fig. 4, also show battery management system 211, it is connected and is constructed to battery module 221, with monitoring and control unit 230 exchange messages.Communicating by letter between battery management system 211 and monitoring and control unit 20 represents by means of double-head arrow 215.
In addition monitoring is connected with central single cell monitoring electronic installation 229 with control unit 230.Communication 235 can for example realize by bus, especially for example, by the bus 235 of wired connection, CAN bus or FlexRay.Yet the invention is not restricted to the bus of wired connection.Therefore if refer to hereinafter (wired connection) bus, communicate by letter so in multiple situation can be instead also by wireless connections for example bluetooth realize.Therefore by single cell monitoring electronic installation 229, transmit especially voltage and/or current value to monitoring and control unit 230, they are processed for security monitoring by monitoring with control unit 230 again, as illustrated hereinafter.
If monitoring and the normal operation of control unit 230 based on storage battery list pond 21 recognize and have overcharging of threat according to the battery module 221 of the upper threshold value over storage battery unit voltage or battery module voltage, by means of the first power semiconductor 241,251 of monitoring and control unit 230 or two half-bridges 240,250 of connection and turn-off other two power semiconductors 242,252, or alternatively connect the second power semiconductor 242,252 of two half-bridges 240,250 and turn-off other two power semiconductors 241,251 so.At will no longer continue 221 chargings of accumulators module and can therefore for example when there is the battery charging plant fault of using, protect safely and avoid overcharging.
If monitoring and the normal operation of control unit 230 based on battery module 221 recognize according to the deep discharge that has threat of the battery module 221 of the lower threshold value lower than storage battery unit voltage or battery module voltage, by means of the first power semiconductor 241,251 of monitoring and control unit 230 or two half-bridges 240,250 of connection and turn-off other two power semiconductors 242,252, or alternatively connect the second power semiconductor 242,252 of two half-bridges 240,250 and turn-off other two power semiconductors 241,242 so.With after-current, no longer flow through battery module 221.May in battery module 221, only flow through by being provided with the electric current of outwards exporting according to the whole battery system of battery module 221 of the present invention the power semiconductor (semiconductor switch) 241,242,251,252 of the coupling unit of battery module 221.
If monitoring and the normal operation of control unit 230 based on battery module 221 recognize the overload that has threat due to the battery module 221 of too high discharging current, these too high discharging currents for example can occur as the result of the external short circuit of the trouble accumulator due in inverter, so by means of monitoring and control unit 230 or two half-bridges 240 of connection, the first power semiconductor 241 of 250, 251 and turn-off other two power semiconductors 242, 252, or alternatively connect two half-bridges 240, the second power semiconductor 242 of 250, 252 and turn-off other two power semiconductors 241, 242.With after-current, no longer flow through battery module 221.Therefore protect battery module 221 to avoid having the load that does not allow high discharging current.
If monitoring and the normal operation of control unit 230 based on battery module 221 recognize owing to crossing the overload that has threat of the battery module 221 of high charge current at low-down temperature, wherein storage battery list pond 21 about especially on anode constructible lithium coating be especially responsive, so by means of monitoring and control unit 230 or two half-bridges 240 of connection, the first power semiconductor 241 of 250, 251 and turn-off other two power semiconductors 242, 252, or alternatively connect two half-bridges 240, the second power semiconductor 242 of 250, 252 and turn-off other two power semiconductors 241, 242.With after-current, no longer flow through battery module 221, and therefore protect battery module 221 to avoid having the load that does not allow high charging current.
If for example inform that by battery management system 211 this vehicle has accident in vehicle according to the monitoring of the battery module of essential safety of the present invention 221 and control unit 230, battery module 221 or its storage battery list pond 21 are via one of two half-bridges 240 or via the parallel electric discharge of two half-bridges 240,250 so.The second power semiconductor 242,252 of 242,252 or two half-bridges 240,250 of the second power semiconductor of for example for this reason one of connecting in two half-bridges 240,250 by means of monitoring and control unit 230 and the first power semiconductor 241,251 of 241,251 or two half-bridges 240,250 of the first power semiconductor one of in two half-bridges 240,250 is moved as controllable resistance under so-called activation operation.The conversion that the electric discharge of storage battery list pond 21 or battery module 221 can also be accompanied by the first power semiconductor 241,251 of two half-bridges 240,250 and the role of the second power semiconductor 241,251 in the same manner realizes.Battery module 221 does not have output voltage and electric discharge substantially so lentamente on its lead-out terminal 224,225.Attainable discharging current is at this only by thermal losses power limited, and this loss power can be imposed on the power semiconductor 241,242,251,252 as controllable resistance operation in continuous service.This power semiconductor 241,242,251,252 as the operation of controllable resistance comprises its hot link and cooling so design as requested.
Figure 5 illustrates according to the basic circuit diagram of the battery module of another form of implementation of the present invention.Be with the difference of form of implementation shown in Figure 4, storage battery list pond 21 is respectively equipped with the single cell monitoring electronic installation 231 of self at this.In addition, be similar in Fig. 4, have a single cell monitoring electronic installation 229 of central authorities, yet wherein several functions of single cell monitoring not in the single cell monitoring electronic installation 229 of central authorities but form in each storage battery list pond 21 or in single cell monitoring electronic installation 231 in corresponding storage battery list pond self yet.Central single cell monitoring electronic installation 229 is communicated by letter with each the single cell monitoring electronic installation 231 in storage battery list pond for this reason.This communication can realize by means of bus 235, and not only single cell monitoring electronic installation 231 in central single cell monitoring electronic installation 229 but also storage battery list pond self is connected to this bus.According to monitoring of the present invention and control unit 230, be in contrast similar to according to communicating by letter with central single cell monitoring electronic installation 229 like that in Fig. 4.
Figure 6 illustrates according to the basic circuit diagram of the battery module of another form of implementation of the present invention.Be with the difference of form of implementation shown in Figure 5, single cell monitoring electronic installation 231 in storage battery list pond self this respectively via one self that is independently communication bus be connected with central single cell monitoring electronic installation 229, the single cell monitoring electronic installation of this central authorities is illustrating side and has the interface of corresponding greater number for this reason.
In Fig. 7, illustrated according to the basic circuit diagram of the battery module of another form of implementation of the present invention, wherein according to this form of implementation, there is single cell monitoring electronic installation 231 in storage battery list pond self and the communication connection 235 between central single cell monitoring electronic installation 229, thus central single cell monitoring electronic installation 229 only with unique single cell monitoring electronic installation 228 direct communications.Single cell monitoring electronic installation 228 in storage battery list pond self is communicated by letter by daisy chain each other, thus all relevant storage battery list pond data first via daisy chain and subsequently via communication connection transmission, this communication connection represents with Reference numeral 225 in the accompanying drawings.
Yet the present invention is not limited to single cell monitoring electronic installation 231 in such storage battery list pond self, it is arranged in corresponding storage battery list pond 21.Alternatively can consider, for the corresponding independently central single cell monitoring electronic installation 231 in each storage battery list pond 21, be arranged on outside storage battery list pond 21 and with storage battery list pond and be connected, wherein selectively central authorities' (master) single cell monitoring electronic installation can exist.
Fig. 8 to 10 shows the other form of implementation of the present invention, wherein in these forms of implementation, monitor and be directly connected with single cell monitoring electronic installation 231 in storage battery list pond self with control unit 230, and seat no longer exists central single cell monitoring electronic installation 229.Therefore some single cell monitoring tasks directly design in storage battery list pond 21/on, the output of the measurement result of wherein obtaining and single cell monitoring electronic installation 231 communicates directly to be monitored and control unit 230.
In monitoring and control unit 230 and communication 235 between single cell monitoring electronic installation 231, at this, be similar to be combined in the above further in these forms of implementation of Fig. 5 to 7 discussion and realize like that, the difference having is, one or more respective communication buses are connected to monitoring and control unit 230 and are not connected to central single cell monitoring electronic installation.Therefore Fig. 8 shows a form of implementation of the present invention, wherein monitoring is connected with single cell monitoring electronic installation 231 via bus with control unit 230, and in Fig. 9, monitors on the one hand and control unit 230 and have a plurality of communication connections or bus between corresponding single cell monitoring electronic installation 231 on the other hand.In addition Figure 10 illustrates an embodiment, and wherein each single cell monitoring electronic installation 231 communicates with one another, and wherein one of a plurality of single cell monitoring electronic installations 231 are connected with control unit 230 with monitoring.
Figure 11 illustrates according to the basic circuit diagram of the battery module 221 of another form of implementation of the present invention.According to the battery module 221 of this another form of implementation of the present invention and the difference at the battery module shown in Fig. 4 to 10, be, battery module 221 additionally comprises that discharge circuit 270 is as supper-fast electric discharge device (UFDD) now.Discharge circuit 270 comprises a positive pole 222 at storage battery list pond circuit 226 with the series circuit being comprised of power semiconductor 271 and resistance 272 being connected between negative pole 223 and in battery module 221, is designed for by means of the discharging current that flows through discharge circuit 270 21 electric discharges of storage battery list pond at this.
As for knowing those skilled in that art, the various combination of single cell monitoring electronic installation 231 in central authorities single cell monitoring electronic installation 229 and storage battery list pond self can arrange in battery module 221, and this battery module has and comprises according to the monitoring of discharge circuit 270 of the present invention and control unit 230.Communication topology is not limited to exemplary topology shown in Figure 11 at this as used herein.Although because be connected topology corresponding to topology shown in Figure 4 according to Figure 11 for the communication 235 between monitoring and control unit 230 and single cell monitoring electronic installation 228,229, yet connect in other embodiments topology also can be for example corresponding in the topology shown in Fig. 5 to 10, wherein these alternative forms of implementation at this only in simply no longer further discussing.
If by battery management system 211,---it is arranged in the battery system with a plurality of such battery modules 221---informs according to the form of implementation shown in Figure 11 of the monitoring of the battery module of essential safety of the present invention 221 and control unit 230, be provided with according to the vehicle of battery system of the present invention and there is accident, via discharge circuit 270, fast battery module 221 is discharged so.In order to support discharge circuit 270, simultaneously also can be via two half-bridges 240,250 by battery module 221 electric discharges.In order to support discharge circuit 270, by means of monitoring and control unit 230, especially connect two the second power semiconductors 242,252 of half-bridge 240,250.Battery module 21 subsequently interdischarge interval not output voltage to its lead-out terminal 224,225.Discharge circuit 270 can so design, and makes it possible to approach short circuit by battery module 221 electric discharges with very large discharging current.Make very rapidly thus battery module 21 in a safe condition.Can in vehicle aspect, there is such situation thus, wherein mechanically distortion and saturating by the object thorn of spine very consumingly of storage battery list pond 21.
Be similar in the form of implementation shown in Fig. 4 to 10, can support also activating the first power semiconductor 241,251 as two half-bridges 240,250 of controllable resistance operation in service by means of monitoring and control unit 230.
If according to the storage battery list pond of battery module of the present invention for example stand to puncture in the scope of UN transportation test test or crash tests or be located in similar situation, monitoring and control unit 230 recognize by the analysis of storage battery unit voltage so, by electric current, discharged in storage battery list pond 21, and can not move this storage battery list pond.The identification of this process can for example realize by the voltage collapse in storage battery list pond 21.Monitoring and control unit 230 trigger by according to discharge circuit 270 of the present invention, being discharged in storage battery list pond 21 at once at this, and subsequently substantially via 21 electric discharges of 270 pairs of these storage battery list ponds of discharge circuit.
If strong heating is stood in the storage battery list pond 21 according to battery module 221 of the present invention, so can be by monitoring and control unit 230 identification this point.Because the time constant for the heating in storage battery list pond 21 is generally very large, thus before can surpassing critical value in the temperature of battery module 221 by cause in time the electric discharge of battery module 221 according to discharge circuit 270 of the present invention.Selectively also can realize by two half-bridges 240,250 electric discharge of battery module 221.In order to support discharge circuit 270, by means of monitoring and control unit 230, especially connect two the second power semiconductors 242,252 of two half-bridges 240,250.Thus according to battery module 221 of the present invention with respect to safer widely by the known battery module of prior art.
This proposition according to battery module 221 of the present invention in be located at storage battery unit voltage on lead-out terminal 224,225 when activating safety measure or within 270 o'clock, keep according to the numerical value that is always less than the storage battery unit voltage that for example maximum of 4.2V allows activating supper-fast discharge circuit (UFDD), these safety measures occur by the variation of the on off state in half-bridge 240,250.This is the great improvement with respect to prior art equally, because otherwise for example can there is very high negative voltage when activating the fusing safety device of inside, storage battery list pond, it can be-400V in storage battery of electric motor, and this negative voltage causes very large problem for the electronic installation of battery management system.
In this proposition, according to battery module 221 of the present invention, be not limited to lithium-ions battery list pond.This storage battery list pond also can comprise other storage battery list pool technologies, for example, for nickel metal mixed power accumulator list pond.
Shown here according to what can consider to adopt so far in the battery module 221 of the essential safety with output voltage that can change poles of the present invention, overcharge safety device (OSD) and storage battery list pond safety device.Measure, for example accumulators list pond that these fail safes in order to improve in mechanical deformation or to penetrate adopt arranges integrated puncture safety device and can live and need not consider equally or design at least very simply.By this proposition according to battery module 221 of the present invention, can form battery system, to the battery management system 211 of this battery system than to proposing requirement still less by the known battery system of prior art.Therefore the electronic installation of battery management system 211 can predictably only be developed and must not meet ASIL C with common direct current insure measures (ASIL-classification QM).The safety of battery system can greatly be improved with respect to prior art.Storage battery direct-flow inverter 210 shown in Figure 10 be for this proposition according to an example of the battery module of electric essential safety of the present invention 221.
Based on this proposition according to the function of battery module 221 of the present invention, in order to make the storage battery unit voltage change poles on the terminals in storage battery list pond 21, according to battery module 221 of the present invention, be particularly useful for having such storage battery direct-flow inverter 210 of the adjustable output voltage of classification.
Storage battery direct-flow inverter 210 shown in Figure 12 is three-phase battery systems with the adjustable output voltage of classification.Storage battery direct-flow inverter 210 comprises three batteries 280,290,300, and they have respectively the series circuit being comprised of according to battery module 221 of the present invention a plurality of.These series circuits of batteries 280,290,300 are connected with the positive batteries utmost point 281,291,301 with separator 40 by charging respectively, and by separator 50, are connected with the negative batteries utmost point 282,292,302 respectively.
According to the present invention, at this, so control storage battery list pond or battery module, its operational factor is located in corresponding threshold value, these operational factors are necessary for the operation of safety.
Therefore lithium-ions battery list pond is typically in the voltage range of the Umin to Umax of 2.8V to 4.2V or preferably move in the voltage range at 3.0V to 4.2V.This is especially applicable to value Umin_safety or Umax_safety that fail safe is relevant.Yet this explanation is applicable to storage battery voltage to be measured in zero load, that is to say, if do not have electric current to flow through storage battery list pond.At this, must necessarily note these threshold values because otherwise electrode can suffer damage.
The floating voltage in storage battery list pond depends on its charged state substantially.At this typically, when voltage U Batteriezelle is 2.8V, charged state SOC adopts 0%, when 3.5V, charged state adopts 20%, and charged state adopts 100% when 4.2V, and wherein these values depend on respectively electrolytical type and the material of negative electrode, anode and/or use.
If electric current flows through storage battery list pond, storage battery unit voltage UBatteriezelle is different from above-mentioned quantity explanation so.Suppose, floating voltage is 3.5V, and the internal resistance in storage battery list pond is 10m Ω in the time of 25 ℃.Under the charging current of 100A, by 3.5V+1.0V=4.5V, draw magnitude of voltage UBatteriezelle to be measured so.When temperature is 0 ℃, yet the internal resistance in storage battery list pond is exemplarily until 50m Ω, and this produces the magnitude of voltage UBatteriezelle of 3.5V-2.5V=1.0V when the exemplary discharging current of 50A.Controller based on using and these magnitudes of voltage of transducer of use in the situation that for example the indoor temperature of 0 ℃ but do not reach.Generally can be located between 4.2V and 5.0V in the value for Umax in service in storage battery list pond, for the value of Umin, be located between 1.5V and 4.2V, be preferably placed between 1.8V and 4.15V, yet these values do not relate to floating voltage.
Above-mentioned magnitude of voltage is applicable to single storage battery list pond.For battery module, depend on how many units in series or be connected in parallel.Therefore the module floating voltage UBatteriemodul allowing is located between n * 2.8V to n * 4.2V, and wherein n represents the quantity in the storage battery list pond that is mutually connected in series.
In lithium-ions battery list pond for the threshold value of temperature for example at Tmin=-40 ℃ and Tmax=30 ℃ to 50 ℃, be preferably preferably 35 ℃ to 40 ℃.By secure context, the maximum temperature Tmax_safety of 46 ℃ to 80 ℃ should be no more than preferably 50 ℃ to 60 ℃.In addition the maximum external temperature Tau β en that moves storage battery list pond should be no more than 40 ℃.
Should not be located at-1000A of battery current by storage battery list pond to+1000A, preferably-600A to+600A, also more preferably-500A to+500A, also more preferably-450A to+450A, also more preferably-350A be to the scope of+350A.
The interior pressure in storage battery list pond should not left the pressure range of 2bar to 8bar, preferred 3bar to 7bar.
Above-mentioned discussion is exemplarily for lithium-ions battery list pond or lithium-ions battery module, and the value wherein providing is particularly useful for having lithium-magnesium-cobalt/cobalt oxide as the lithium-ions battery list pond of the active material for negative electrode.Yet the invention is not restricted to such storage battery list pond, be especially not limited to lithium-ions battery list pond.Therefore the numerical value of operational factor to be selected depends on corresponding storage battery list pond type in practice.
Except above-mentioned written open, in this case further openly the present invention addedly with reference to the diagram in Fig. 1 to 12.
Claims (11)
1. a battery module (221), it has the storage battery list pond circuit (226) that is comprised of a plurality of storage battery lists ponds (21) and for monitoring monitoring and the control unit (230) of the functional status of described battery module (221), it is characterized in that, in described battery module (221), arrange and there are two half-bridges (240, 250) coupling unit, described half-bridge comprises respectively the first power semiconductor (241 with positive pole (222) coupling of described storage battery list pond circuit (226), 251), the second power semiconductor (242 with negative pole (223) coupling of described storage battery list pond circuit (226), 252) and middle link, and corresponding another lead-out terminal (224 via link in the middle of corresponding and described battery module (221), 225) connect, wherein said battery module (221) is set to by means of the control by described monitoring and control unit (230), so move described coupling unit under normal operation, so that connect described two half-bridges (240, 250) the first power semiconductor (241 one of, 251) and another half-bridge (240, 250) the second power semiconductor (242, 252) and turn-off described half-bridge (240, 250) other power semiconductors (241, 242, 251, 252), so that battery module voltage is selectively applied to the lead-out terminal (224 of described battery module (221) along positive direction or negative direction, 225) on.
2. battery module according to claim 1 (221), wherein said battery module (221) is also set to by described monitoring and control unit (230), so control described coupling unit under described normal operation, so that connect described the first power semiconductor (241,251) or connect described the second power semiconductor (242,252), to do not have battery module voltage to be applied on the lead-out terminal (224,225) of described battery module (221).
3. battery module according to claim 1 and 2 (221), the electric current that wherein said monitoring and control unit (230) are constructed to monitor storage battery unit voltage and/or battery module voltage and/or flow through described battery module, and when existing its value to surpass the storage battery unit voltage of upper voltage threshold or battery module voltage, and/or when having its value lower than the storage battery unit voltage of lower voltage threshold or battery module voltage, and/or when existing its value to surpass the charging current of predetermined charging current threshold value, and/or when existing its value to surpass the discharging current of predetermined discharging current threshold, so control the described power semiconductor (241 of described coupling unit, 242, 251, 252) to regulate the functional status of described battery module (221), under described functional status, do not have electric current to flow through described battery module (221), to connect described half-bridge (240, 250) the first power semiconductor (241, 251) or the second power semiconductor (242, 252) and turn-off described half-bridge (240, 250) the second power semiconductor (242, 252) or the first power semiconductor (241, 251).
4. according to the battery module one of the claims Suo Shu (221), wherein said monitoring and control unit (230) are constructed to, according to the information of especially communicating by letter by battery management system and/or to the analysis of measured single pond temperature or battery module temperature and/or the analysis of described battery module voltage is carried out to the existence of hazard recognition situation, especially in the situation that surpass predetermined single pond temperature of temperature threshold or the existence of the voltage collapse hazard recognition situation of battery module temperature and/or described battery module voltage; And when there is described dangerous situation, so control coupling unit with by described battery module (221) electric discharge so that in described half-bridge (240,250) one of at least in connect corresponding described the first power semiconductor (241,251) or corresponding described the second power semiconductor (242,252) and make corresponding another power semiconductor (241,242,251,252) in service in activating as controllable resistance.
5. according to the battery module one of the claims Suo Shu (221), wherein said battery module (221) comprises the discharge circuit (270) with described storage battery list pond circuit (226) coupling, especially there is the discharge circuit (270) of the series circuit being formed by power semiconductor (271) and resistance (272) and be set to so control described discharge circuit (270) when dangerous situation, so that can realize the electric discharge to described battery module (221) by means of described discharge circuit (270), especially to flow through the discharging current of described discharge circuit (270), realize the electric discharge to described battery module (221), described discharging current is corresponding to a predetermined part of the short circuit current of described battery module (221).
6. a method for the monitoring by means of arranging at battery module (221) and control unit (230) monitoring with the battery module (221) in a plurality of storage battery lists ponds (21), it is characterized in that, by means of the coupling unit arranging, move described battery module (221) in described battery module (221), described coupling unit comprises that two by power semiconductor (241, 242, 251, 252) half-bridge (240 of the formation full-bridge forming, 250), if wherein determine failure condition or the dangerous situation different from the normal operation of described battery module (221) by described monitoring with control unit (230), so by means of to described coupling unit and/or with the control of the discharge circuit (270) of the repid discharge for described battery module (221) of described storage battery list pond (21) coupling make described battery module (221) in a safe condition under.
7. method according to claim 6, wherein by means of described monitoring and control unit (230) monitoring storage battery unit voltage and/or battery module voltage and/or flow through the electric current of described battery module, and when existing its value to surpass the storage battery unit voltage of upper voltage threshold or battery module voltage, and/or when having its value lower than the storage battery unit voltage of lower voltage threshold or battery module voltage, and/or when existing its value to surpass the charging current of predetermined charging current threshold value, and/or when existing its value to surpass the discharging current of predetermined discharging current threshold, make the described power semiconductor (241 of described coupling unit, 242, 251, 252) in a kind of on off state, in described on off state, do not have electric current to flow through described battery module (221).
8. according to the method described in claim 6 or 7, wherein by described monitoring and control unit (230), according to the information of especially communicating by letter by battery management system and/or to the analysis of measured single pond temperature or battery module temperature and/or the analysis of storage battery unit voltage or battery module voltage is determined to the existence of dangerous situation, especially in the situation that surpass the existence of single pond temperature of predetermined temperature threshold or the voltage collapse hazard recognition situation of battery module temperature and/or described storage battery unit voltage or described battery module voltage.
9. according to the method one of claim 6 to 8 Suo Shu, wherein when there is described dangerous situation, so control described coupling unit for the electric discharge of described battery module (221) so that described half-bridge (240,250) one of at least in connect corresponding power semiconductor (241,251) and make corresponding other power semiconductors (242,252) in servicely moving as controllable resistance of activating.
10. according to the method one of claim 6 to 9 Suo Shu, wherein when there is described dangerous situation, by means of discharge circuit (270), to flow through the discharging current of described discharge circuit (270), described battery module (221) is discharged, described discharging current is corresponding to a predetermined part of the short circuit current of described battery module (221).
11. battery systems (210), it comprises storage battery and battery management system (211), described storage battery has at least one batteries (280,290,300), in described batteries, be provided with a plurality ofly according to the battery module one of claim 1 to 5 Suo Shu (221), wherein said battery management system is constructed to communicate by letter with control unit (230) with the monitoring of described battery module (221).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013204507.7 | 2013-03-15 | ||
| DE102013204507.7A DE102013204507A1 (en) | 2013-03-15 | 2013-03-15 | Electrically intrinsically safe battery module with reversible output voltage and method for monitoring a battery module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104052097A true CN104052097A (en) | 2014-09-17 |
| CN104052097B CN104052097B (en) | 2016-12-07 |
Family
ID=50070453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410093006.8A Expired - Fee Related CN104052097B (en) | 2013-03-15 | 2014-03-13 | Battery module and the method being used for monitoring battery module |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2779354B1 (en) |
| CN (1) | CN104052097B (en) |
| DE (1) | DE102013204507A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504505A (en) * | 2018-05-17 | 2019-11-26 | 大众汽车有限公司 | The device and method of temperature adjusting for battery, secondary battery unit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018200976A1 (en) | 2018-01-23 | 2019-07-25 | Volkswagen Aktiengesellschaft | Method for controlling the charging of a battery unit, method for charging a battery unit, control unit, charging system, battery system and working device |
| US10879519B2 (en) | 2018-12-17 | 2020-12-29 | Bayco Products, Inc. | Spark protection apparatus for intrinsically safe, battery-operated devices |
| EP4030522A1 (en) * | 2021-01-15 | 2022-07-20 | VARTA Microbattery GmbH | Battery module, modular battery system and method for assembling a modular battery system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012095207A1 (en) * | 2011-01-12 | 2012-07-19 | Sb Limotive Germany Gmbh | Method for controlling a battery, and battery for carrying out the method |
| CN102844221A (en) * | 2010-04-16 | 2012-12-26 | Sb锂摩托有限公司 | Battery comprising an integrated pulse width modulation inverter |
| CN102934257A (en) * | 2010-04-16 | 2013-02-13 | Sb锂摩托有限公司 | Battery comprising a plurality of independent battery cell lines |
| CN102958745A (en) * | 2010-06-29 | 2013-03-06 | 本田技研工业株式会社 | Electric automobile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054189B2 (en) * | 2008-10-16 | 2011-11-08 | Walter Kidde Portable Equipment Inc. | Life safety device with automatic battery discharge at the end of life |
| DE102009028974A1 (en) * | 2009-08-28 | 2011-03-03 | Robert Bosch Gmbh | Half-bridge converter for a battery system and battery system |
| EP2355229A1 (en) * | 2010-02-08 | 2011-08-10 | Fortu Intellectual Property AG | High voltage battery system and method for controlling same |
| US8395280B2 (en) * | 2010-02-16 | 2013-03-12 | Infineon Technologies Ag | Circuit arrangement including a multi-level converter |
| DE102010027857A1 (en) * | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Coupling unit and battery module with integrated pulse inverter and increased reliability |
| DE102010064325A1 (en) * | 2010-12-29 | 2012-07-05 | Robert Bosch Gmbh | System with an electric machine |
| DE102011006395A1 (en) * | 2011-03-30 | 2012-10-04 | Robert Bosch Gmbh | Method for operating electrical system in event of failure of e.g. voltage sensors of monitoring system of high-volt lithium-ion battery in electric car, involves not-disconnecting battery from onboard network during discharging process |
-
2013
- 2013-03-15 DE DE102013204507.7A patent/DE102013204507A1/en not_active Withdrawn
-
2014
- 2014-02-11 EP EP14154602.8A patent/EP2779354B1/en active Active
- 2014-03-13 CN CN201410093006.8A patent/CN104052097B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844221A (en) * | 2010-04-16 | 2012-12-26 | Sb锂摩托有限公司 | Battery comprising an integrated pulse width modulation inverter |
| CN102934257A (en) * | 2010-04-16 | 2013-02-13 | Sb锂摩托有限公司 | Battery comprising a plurality of independent battery cell lines |
| CN102958745A (en) * | 2010-06-29 | 2013-03-06 | 本田技研工业株式会社 | Electric automobile |
| WO2012095207A1 (en) * | 2011-01-12 | 2012-07-19 | Sb Limotive Germany Gmbh | Method for controlling a battery, and battery for carrying out the method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504505A (en) * | 2018-05-17 | 2019-11-26 | 大众汽车有限公司 | The device and method of temperature adjusting for battery, secondary battery unit |
| CN110504505B (en) * | 2018-05-17 | 2022-12-27 | 大众汽车有限公司 | Device and method for regulating the temperature of a battery, and battery unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104052097B (en) | 2016-12-07 |
| EP2779354A2 (en) | 2014-09-17 |
| DE102013204507A1 (en) | 2014-10-02 |
| EP2779354B1 (en) | 2020-06-17 |
| EP2779354A3 (en) | 2017-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104052102B (en) | Battery module and the method for monitoring battery module | |
| CN104051803B (en) | Accumulator list pool unit and the method being used for monitoring accumulator list pond | |
| CN104052095B (en) | Battery list pool unit and the method for monitoring battery list pond | |
| US10464507B2 (en) | Battery management system and switching method thereof | |
| CN104600815B (en) | Electromobile charging system and charging control method | |
| US10164450B2 (en) | Early alert of battery thermal state based on voltage | |
| CN102004222B (en) | Method and device for monitoring state of relay in vehicle-mounted battery management system | |
| US10328801B2 (en) | Electrical fuse, method of operating an electrical fuse and electrical traction network | |
| CN109649216B (en) | Automatic connection of drive battery | |
| US8922959B2 (en) | Safety component by fuse at high voltage battery sensing line | |
| CN106627188B (en) | Electric automobile increases journey system | |
| CN105711434A (en) | Power battery management system of electric car | |
| CN105691226A (en) | Fault handling system and handling method of lithium ion power battery system | |
| CN106463947A (en) | Battery pack, battery system, and discharging method | |
| CN106564383B (en) | A kind of high pressure electric appliance box, electric automobile power supply system and electric vehicle | |
| US9306403B2 (en) | Battery module, battery management system, system for supplying a drive of a machine suitable for generating torque with electrical energy, and a motor vehicle | |
| JP2013076602A (en) | Power storage system | |
| CN205632165U (en) | Power battery increases journey system | |
| CN104842814B (en) | Light bus two-way redundant safety high-tension apparatus and its control system and control method | |
| US20220227256A1 (en) | Vehicle traction battery circuit and control system | |
| CN104052097A (en) | Battery Module And A Method For Monitoring A Battery Module | |
| CN109070756A (en) | High-voltage battery system including safety device | |
| CN109693625A (en) | Automobile standby power supply module and automobile power supply system comprising it | |
| CN110341483A (en) | A kind of detection system and detection method of electric vehicle motor controller | |
| CN106183823A (en) | Vehicle, high voltage system and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210313 |